Question

C语言 A+B problem

Calculate a + b InputThe input will consist of a series of pairs of integers a and b,separated by a space, one pair of integers per line. OutputFor each pair of input integers a and b you should output the sum of a and b in one line,and with one line of output for each line in input.让人比较疑惑的是怎么判断字符串已经结束了，就是这行以后不会有其他输入了。对输入没有要求 请不要说输入“-1”之类的特殊符号

Answer 1

#include <stdio.h>
int main()
{
int a,b;
while(scanf("%d%d",&a,&b)!=EOF)
{
printf("%d\n", a+b);
}
return 0;
}

Answer 2

输入是每一行一个A和B，是打回车换行的。
回车符是\n，根据这个判断.

Answer 3

int a,b,z,sum;
z=1
whlie z!=10
{
scanf("%d",&a);
scanf("%d",&b);
printf("%d+%d=%d\n",a,b,sum);
}这个试试？